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Forum Discussion
Readynas 316 extremely slow after update to 6.4.2
Upgraded firmware from 6.2 to 6.4.2
Backing up via USB 3.0 to an external hard drive has become dramatically slower (10 hours originally, now takes 29+ hours) for a equivalently sized backup.
...
I don't use USB backup, so I haven't monitored its performance. I did see a significant slowdown for CIFS access with 6.4.x. Eventually I decided to do a factory reset with 6.4.2, and performance greatly improved. But I don't know if that would help your situation or not.
but the factory reset would delete all of my stored data (4TB) ... correct?
Sorrt just noticed that the posting indicates Readynas 102 -- it is a Readynas 316 ...
alliancesteve wrote:
but the factory reset would delete all of my stored data (4TB) ... correct?
Correct. I had about the same amount of data I had to restore.
alliancesteve wrote:
Sorrt just noticed that the posting indicates Readynas 102 -- it is a Readynas 316 ...
The reset might still improve performance.
In my case, the volumes were quite old. Netgear made some adjustments to the disk configuration, which required a reset to take advantage of. I don't really know if those configuration changes did the trick, or if the new disk allocation was simply faster.
Performance prior to 6.4 was about 70 MB/s read and 50 MB/s write. Post upgrade, it was about 35 MB/s read and write. After the reset, it was ~70-75 MB/sec read and write.
StephenB wrote:The reset might still improve performance.
In my case, the volumes were quite old. Netgear made some adjustments to the disk configuration, which required a reset to take advantage of. I don't really know if those configuration changes did the trick, or if the new disk allocation was simply faster.
Performance prior to 6.4 was about 70 MB/s read and 50 MB/s write. Post upgrade, it was about 35 MB/s read and write. After the reset, it was ~70-75 MB/sec read and write.
A clean, new filesystem will have higher performance than one that isn't clean. There have been some filesystem improvements over time which can help, some of which may require creating a new volume to take advantage of. We did a major kernel upgrade in 6.4.x allowing us to make use of improvements in the new kernel. Also we have better default settings for new shares than on some very old firmware. On ARM systems e.g. 102 since 6.2.0 we have had snapshots and CoW disabled by default. When snapshots and CoW are selectively used only on the shares for which they are appropriate, if a reasonable amount of free space is kept, and if scheduled volume maintenance is run performance should remain at high levels. However if you use snapshots or CoW and later decide not to use them, then even if you disable them there will be some effects of using those that remain.
From what it sounds like, I do not understand how resetting to system defaults would help. I am experiencing problems writing to an external hard drive via USB 3.0 (Toshiba Canvio Drives). I have been writing to any of 6 drives, which are reformatted prior to connecting to the ReadyNAS 316 ... The system then assignes a new share to them (so it should pick up the "new" defaults...
I am experiencing no noticable issues reading or writing to the ReadyNAS from other devices connected to our network. The issue is exclusiver to writing to the USB 3.0 external hard drives ...
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